WO2009129838A1 - Référencement flexible d'un flux secondaire à l'intérieur d'un flux de données de transport - Google Patents

Référencement flexible d'un flux secondaire à l'intérieur d'un flux de données de transport Download PDF

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Publication number
WO2009129838A1
WO2009129838A1 PCT/EP2008/010258 EP2008010258W WO2009129838A1 WO 2009129838 A1 WO2009129838 A1 WO 2009129838A1 EP 2008010258 W EP2008010258 W EP 2008010258W WO 2009129838 A1 WO2009129838 A1 WO 2009129838A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
stream
data portion
data stream
information
Prior art date
Application number
PCT/EP2008/010258
Other languages
English (en)
Inventor
Thomas Schierl
Cornelius Hellge
Karsten GRÜNEBERG
Original Assignee
Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V. filed Critical Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V.
Priority to BRPI0822167-7A priority Critical patent/BRPI0822167B1/pt
Priority to US12/989,135 priority patent/US20110110436A1/en
Priority to BR122021000421-8A priority patent/BR122021000421B1/pt
Priority to CN2008801287904A priority patent/CN102017624A/zh
Priority to KR1020107023598A priority patent/KR101204134B1/ko
Priority to JP2011505369A priority patent/JP5238069B2/ja
Priority to CA2722204A priority patent/CA2722204C/fr
Priority to TW098112708A priority patent/TWI463875B/zh
Publication of WO2009129838A1 publication Critical patent/WO2009129838A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/845—Structuring of content, e.g. decomposing content into time segments
    • H04N21/8455—Structuring of content, e.g. decomposing content into time segments involving pointers to the content, e.g. pointers to the I-frames of the video stream

Definitions

  • a transport stream which comprises the first data portion 102a and the second data portion 106a may then be generated by multiplexing the data portions in the order of their original timing information.
  • already- existing data fields such as, for example, the data field containing the second timing information 110, may be utilized to receive the association information.
  • Fig. 5 briefly summarizes an embodiment of a method for generating a representation of a video sequence having a first data stream comprising first data portions, the first data portions having first timing information and a second data stream comprising second data portions, the second data portions having second timing information.
  • association information is associated to a second data portion of the second data stream, the association information indicating a predetermined first data portion of the first data stream.
  • the decoding strategy generator 400 comprises a reference information generator 402 as well as a strategy generator 404.
  • the reference information generator 402 is adapted to derive the reference data portion for the second data portion using the referenced predetermined first data portion of the first data stream.
  • the strategy generator 404 is adapted to derive the decoding strategy for the second data portion using the second timing information as the indication for a processing time for the second data portion and the reference data portion derived by the reference information generator 402.
  • Fig. 10 shows an embodiment of a data packet scheduler 500 comprising a process order generator 502, an optional receiver 504 and an optional reorderer 506.
  • the receiver is adapted to receive a transport stream comprising a first data stream and a second data stream having first and second data portions, wherein the first data portion comprises first timing information and wherein the second data portion comprises second timing information and association information.
  • the process order generator 502 is adapted to generate a processing schedule having a processing order, such that the second data portion is processed after the referenced first data portion of the first data stream.
  • the reorderer 506 is adapted to output the second data portion 452 after the first data portion 450.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)

Abstract

Cette invention se rapporte à une représentation d'une séquence vidéo qui présente un premier flux de données qui comprend des premières parties de données, les premières parties de données comprenant des premières informations de synchronisation et un deuxième flux de données, le deuxième flux de données comprenant une deuxième partie de données qui présente des deuxièmes informations de synchronisation. Des informations d'association sont associées à une deuxième partie de données du deuxième flux de données, les informations d'association indiquant une première partie de données prédéterminée du premier flux de données. Un flux de transport comprenant le premier et le deuxième flux de données comme représentation de la séquence vidéo est généré.
PCT/EP2008/010258 2008-04-25 2008-12-03 Référencement flexible d'un flux secondaire à l'intérieur d'un flux de données de transport WO2009129838A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BRPI0822167-7A BRPI0822167B1 (pt) 2008-04-25 2008-12-03 Método para derivar uma estratégia de decodificação
US12/989,135 US20110110436A1 (en) 2008-04-25 2008-12-03 Flexible Sub-Stream Referencing Within a Transport Data Stream
BR122021000421-8A BR122021000421B1 (pt) 2008-04-25 2008-12-03 Referenciação de sub-fluxo flexível dentro de um fluxo de dados de transporte
CN2008801287904A CN102017624A (zh) 2008-04-25 2008-12-03 传输数据流中的灵活子流参考
KR1020107023598A KR101204134B1 (ko) 2008-04-25 2008-12-03 트랜스포트 데이터 스트림내에서 참조하는 유연성 있는 서브스트림
JP2011505369A JP5238069B2 (ja) 2008-04-25 2008-12-03 トランスポート・データストリーム内で参照するフレキシブル・サブストリーム
CA2722204A CA2722204C (fr) 2008-04-25 2008-12-03 Referencement flexible d'un flux secondaire a l'interieur d'un flux de donnees de transport
TW098112708A TWI463875B (zh) 2008-04-25 2009-04-16 傳輸資料流程中的靈活子流參考

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP2008003384 2008-04-25
EPPCT/EP2008/003384 2008-04-25

Publications (1)

Publication Number Publication Date
WO2009129838A1 true WO2009129838A1 (fr) 2009-10-29

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Application Number Title Priority Date Filing Date
PCT/EP2008/010258 WO2009129838A1 (fr) 2008-04-25 2008-12-03 Référencement flexible d'un flux secondaire à l'intérieur d'un flux de données de transport

Country Status (8)

Country Link
US (1) US20110110436A1 (fr)
JP (1) JP5238069B2 (fr)
KR (1) KR101204134B1 (fr)
CN (1) CN102017624A (fr)
BR (2) BR122021000421B1 (fr)
CA (2) CA2722204C (fr)
TW (1) TWI463875B (fr)
WO (1) WO2009129838A1 (fr)

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JP2014509114A (ja) * 2011-01-19 2014-04-10 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ビットストリームサブセットの指示
WO2014111524A1 (fr) * 2013-01-18 2014-07-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Correction d'erreur sans voie de retour utilisant des blocs sources comprenant des symboles issus d'au moins deux flux de données avec des identificateurs de symbole de début synchronisés entre les flux de données
WO2018064175A1 (fr) * 2016-09-29 2018-04-05 Cisco Technology, Inc. Placement de paquets pour des schémas de codage vidéo échelonnable

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JP2014509114A (ja) * 2011-01-19 2014-04-10 テレフオンアクチーボラゲット エル エム エリクソン（パブル） ビットストリームサブセットの指示
WO2014111524A1 (fr) * 2013-01-18 2014-07-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Correction d'erreur sans voie de retour utilisant des blocs sources comprenant des symboles issus d'au moins deux flux de données avec des identificateurs de symbole de début synchronisés entre les flux de données
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Also Published As

Publication number Publication date
KR20100132985A (ko) 2010-12-20
TW200945901A (en) 2009-11-01
BRPI0822167B1 (pt) 2021-03-30
CA2924651A1 (fr) 2009-10-29
CA2722204C (fr) 2016-08-09
CA2924651C (fr) 2020-06-02
CN102017624A (zh) 2011-04-13
CA2722204A1 (fr) 2009-10-29
US20110110436A1 (en) 2011-05-12
BR122021000421B1 (pt) 2022-01-18
BRPI0822167A2 (pt) 2015-06-16
JP2011519216A (ja) 2011-06-30
TWI463875B (zh) 2014-12-01
KR101204134B1 (ko) 2012-11-23
JP5238069B2 (ja) 2013-07-17

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